“retrospective study”的概念、定义、翻译、参考文献-科学参考

单词	retrospective study
释义	retrospective study Encyclopedia 理学临床试验的自适应性设计释 retrospective study观察性研究在自然状态下对研究对象的特征进行观察、记录，并对结果进行描述和对比分析的研究。 Mathematics retrospective study回溯研究
随便看	waterway management waterway navigation chart waterway network in the Pearl River delta waterway of the Heilongjiang River waterway of the Songhuajiang River waterway regulation for navigation in mountainous area waterway regulation structures waterway regulation works Waterways Classic Waterways Law of the People's Republic of China waterway transport waterway transport business documents water weed water weeds water well water-well drilling waterwheel plant water-wind erosion crisscross region Water Witch Episode waterworks water yield in mines Wating for Playing Chess in the Mountain by Liao Wating the Ship at the Col in Summer by Dong Yuan Watkins factor Watson

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